There have been no arrests made in the slaying of Simeonette Mapes-Crupi, about 24 hours after the woman was found face down in her apartment at 1446 Forest Hill Rd., New Springville.

STATEN ISLAND, N.Y. - The investigation into the deadly stabbing of a 29-year-old social studies teacher continued today, with cops coming and going from the brick two-story duplex she shared with her husband.

There have been no arrests made in the slaying of Simeonette Mapes-Crupi, about 24 hours after the woman was found face down in her apartment at 1446 Forest Hill Rd., New Springville, stabbed repeatedly in the back and head.

Her husband, Jonathan Crupi, called police after discovering her body at about 2:30 p.m., police said.

Initial reports indicated she might have been slain in a home invasion robbery, but police have yet to release the circumstances surrounding the stabbing.

The apartment was found in a state of disarray, but police weren't sure if anything was taken, an NYPD spokesman said yesterday. Police found no obvious signs of forced entry, the spokesman said.

Ms. Mapes-Crupi worked for the Department of Education, starting as a social studies teacher in 2006, said Margie Feinberg, a department spokeswoman. She worked in various schools in Brooklyn, until 2009, when she started teaching at The School for Classics: An Academy of Thinkers, Writers and Performers, across the street from the Cypress Hills Houses development in East New York.

Her husband is an English teacher at the same school, Ms. Feinberg said.